6-8
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 6 Circuits and Tunnels
Creating Multiple Drops for Unidirectional Circuits
c.
Click
Add Span
.
The span is added to the Included Spans list and the span arrow turns blue. To remove a span, select it
in the Included Spans list and c lick
Remove
Step 14
Repeat Step 13 until the circuit is provisioned from the source to the destination node.
When provisioning a protected circuit, you only need to select one path of BLSR or 1+1 spans from the
source to the drop. If you select unprotected spans as part of the path, select two different paths for the
unprotected segment of the path.
Step 15
When the circuit is provisioned, click
Finish
.
If you entered more than 1 in
Number of Circuits
in the Circuit Attributes dialog box in Step 3, the
Circuit Source dialog box is displayed so you can create the remaining circuits.
Step 16
If you are provisioning circuits before installing the traffic cards and enabling their ports, you must
install the cards and enable the ports before circuits will carry traffic. For procedures, see the
ONS 15327 Cards” procedure on page 1-17
and the
“Enable Ports” procedure on page 3-9
6.3 Creating Multiple Drops for Unidirectional Circuits
Unidirectional circuits can have multiple drops for use in broadcast circuit schemes. In broadcast
scenarios, one source transmits traffic to multiple destinations, but traffic is not returned back to the
source.
When you create a unidirectional circuit, the port that does not have its Rx input terminated with a valid
input signal (a destination drop port for example) generates a loss of service (LOS) alarm. To mask the
alarm, create an alarm profile suppressing the LOS alarm and apply it to the port that does not have its
Rx input terminated. See the
“Creating and Modifying Alarm Profiles” section on page 10-7
for
information.
Procedure: Create a Unidirectional Circuit with Multiple Drops
Step 1
Use the
“Create an Automatically Routed Circuit” procedure on page 6-2
to create a circuit. To make it
unidirectional, uncheck the Bidirectional check box on the Circuit Creation dialog box.
Step 2
After the unidirectional circuit is created, in node or network view select the
Circuits
tab.
Step 3
Select the unidirectional circuit and click
Edit
(or double-click the circuit).
Step 4
On the
Drops
tab of the Edit Circuits dialog box, click
Create
or, if Show Detailed Map is selected,
right-click a node on the circuit map and select
Add Drop
.
Step 5
On the Define New Drop dialog box, complete the appropriate fields to define the new circuit drop:
Node, Slot, Port, STS, VT
(if applicable).
Step 6
Click
OK
.
Step 7
If you need to create additional drops, repeat Steps 4 – 6. If not, click
Close
.
Step 8
Verify the new drops on the Edit Circuit map:
•
If Show Detailed Map is selected: a “D” enclosed by circles appears on each side of the node
graphic.
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...
